Finding the Fourth Proportional to 11,296.94, 16,945.52 and 2,978.15

Step by Step Solution

1. Step 1: Write the proportion equation
   11,296.94 : 16,945.52 = 2,978.15 : x
2. Step 2: Convert to fraction form
   11,296.94/16,945.52 = 2,978.15/x
3. Step 3: Cross multiply
   11,296.94x = 16,945.52 × 2,978.15
4. Step 4: Simplify right side
   11,296.94x = 50,466,200.77
5. Step 5: Solve for x
   x = 50,466,200.77/11,296.94
6. Step 6: Final answer
   x = 4,467.25